[Shipper Pro] Exclude directories in Shipper

If this is already possible I'm not finding it, but I'd like the ability to exclude things when moving a site with Shipper. For example, when pushing my dev version from localhost to staging, it moved my entire .git repository in my theme file, which is completely unnecessary and took forever. I also use some plugins that I only use in development, and several plugins (such as security plugins) that I only use for staging and production.

This is probably a separate feature request but it would also be cool if Shipper could tell which files have been changed and only move those ones, so that future migrations don't take so long.